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Mathematica > Core Language > String Manipulation > String Operations >

Built-in Mathematica Symbol

StringInsert

StringInsert["string", "snew", n]
yields a string with "snew" inserted starting at position

in "string".

StringInsert["string", "snew", -n]
inserts at position

from the end of "string".

StringInsert["string", "snew", {n₁, n₂, ...}]
inserts a copy of "snew" at each of the positions

StringInsert[{s₁, s₂, ...}, "snew", n]
gives the list of results for each of the

StringInsert["string", "snew", n] makes the first character of snew the character in the new string.

StringInsert["string", "snew", -n] makes the last character of snew the character from the end of the new string.

In StringInsert["string", "snew", {n₁, n₂, ...}] the n_i are taken to refer to positions in "string" before any insertion is done. »

Insert XYZ after character position 4:

Insert XYZ starting 4 character positions from the end of the string:

Insert XYZ at several positions:

Insert a dot at every third character position:

Count from the end:

Insertion positions always refer to the original string:

Insert XYZ to start one character position after the end of the existing string:

An equivalent form:

The positions refer to the original string, not the final one:

StringInsert operates on the raw characters in a string: